It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 397 165 971 is not a prime number.
For example, 397 165 971 can be divided by 3: 397 165 971 / 3 = 132 388 657.
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For 397 165 971 to be a prime number, it would have been required that 397 165 971 has only two divisors, i.e., itself and 1.
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397 165 971 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 397 165 971 is about 19 929.023.
Thus, the square root of 397 165 971 is not an integer, and therefore 397 165 971 is not a square number.
The square of a number (here 397 165 971) is the result of the product of this number (397 165 971) by itself (i.e., 397 165 971 × 397 165 971); the square of 397 165 971 is sometimes called "raising 397 165 971 to the power 2", or "397 165 971 squared".
The square of 397 165 971 is 157 740 808 520 372 832 because 397 165 971 × 397 165 971 = 397 165 9712 = 157 740 808 520 372 832.
As a consequence, 397 165 971 is the square root of 157 740 808 520 372 832.
397 165 971 is a number with 9 digits.
The multiples of 397 165 971 are all integers evenly divisible by 397 165 971, that is all numbers such that the remainder of the division by 397 165 971 is zero. There are infinitely many multiples of 397 165 971. The smallest multiples of 397 165 971 are: